Slug-casting machine



May 27.

' l. T. REMAS SLUG CASTING MACHINE Filed Jan. 19, 1926 2 Sheet, t 1

. 1,630 094 May 1927' i. T. REMAS SLUG CASTING MACHINE Filed Jan. 19,1926 2 Sheets-Sheet 2 i Mum m lllh which they 1 started.

Patented May 24, l927.

' D STATES 1.6 .094, P TE T OFFICE- ISIDORE T. REMAS, on woonnavnn, NEWYon-K, assreavoa '10 MERGENTI-IALER LIND- i i TYPE COMPANY, Aconroimrron or new YORK.

sLUe-cAs'rINe ivraonnvn.

which their characters are to appear in print,

' and then assembled in line, the composed line transferred to the t'aceot a mold, the

10 mold filled with molten metal to form a, slug or linoty'peagainst thematr-iceswhich pro duce the type characters thereon, and the matricesthereafter returned through distributing mechanism to themagazine fromIn this classot' machines, the molds are carried by a wheel or. qdisc'rotatably mounted on a slide commonly known as the mold slide, which isadvanced from the rear before each casting 0 operation to press theactive moldagainst the composed line 0t matrices at the front.Usuallynthe advance of theslide isimmediatelyfollowed by the advance ofthe melting po-t, which bringsits mouth-piece tight- 1 5 1y up againstthe back of the mold prepar atory to the descent of the pump plunger and'the casting of the slug; It, has" been i found in practice that flakesor tins of type metal frequently formv upon the mouth-piece 00i the pot,and; if allowed'to accumulate, result in imperfect lock-'ups, backsquirts, etc. i v The present invention is directed to an automaticwiper of improved form, which is operated after each casting operationto Morefspecifically.the Wiper is operated from] the main drive shaftof-the machine, being secured to a rock shaft whichisturned firstpositivelyyin one direction and then/positively in the'oth'er by, aprojection on the mold disc rotating gear wheel through suit ableconnections to, be described in detail later on.

In the accompanying, drawings, I have shown my invention only inpreferred form I and. by wayof exampleand asapplied to a linoty'penachine, but obviously .many' not wish to limit myself to anyspecificform is clamped securelyat A npon one end of a rock shaft B. the latterbeing loosely keep thelpot mouthpiece clean andifree ofApplicationfiledJ'anuarylfi, 1926. Serial No. 82,196. i

changes and alterations may bemade there in and in its mode of operationwithout departure, from ,its spirit. Generally speak; mg, I desire it tobe understood that I do or. embodiment, except in so far as suchlimitations are specified in'the appended claims,

Referring to the drawings:

Fig. 1 is a perspective view of the improved wiper, its operatingmechanism and associated parts; v y Fig. ".2 a detail side view of thewiper operating cam, and a portion of the gear wheel to which it issecured;

I Fig 3 is-a detail vertical section through the wiper blade'and itsoperating arm;

Fig. 4 is a vertical section, showing the means for turning. therock'shaft in opposite directions; c Y 7 F 5 Yis a plan view of theparts shown in Fig.4; i Fig. 6 is a vertical section, taken on line 6-6of Fig. 5; and V I Fig. 7 isaverticalsectional.view, showinthefrelative vpositions ot'the mold disc and H mouthpiece in normal andcasting positions.

As shown in Fig. l, the wiper blade A is" secured ,byscrews a withinthebifurcated end of a curved supporting arm A, which mounted insuitable bearing brackets G, C

so as to be rotatable in oppositedirections i to swing the wiper blade Afrom. its normal position above the melting pot D downward across the.mouthpiece D, and back againafter each casting operation. "A wip ing padA attached to the rear face of the blade is in this way caused to sweeptwice across thetace of the mouthpiece and remove any fins or flakes ofmetal which may have adhered thereto from a previous casting operation.In the commerical machines, the

mouthpiece I) normally stands beneathfor within the flanged portion G.of the mold disc G or in juxtaposition to the back of the mold G (seedotted lines in Fig. 7), so that the only time whenthe relative positionof jsaidparts is such that the face of the mouthpiece may be reached bya wiper in the manner desired is after the pot D has receded, but beforethe mold disc hasbeen retracted from casting positionv (see full y 7lines in Fig.7). Furthermore, in these ma- 1m chines, the recession ofthe pot is followed almost in'iniediately by the retraction of the discand, consequently, the downward and upward movements of the wiper mustnecessarily be effected within the time limit allowed in order to avoidbeing caught between said parts. 't is therefore proposed, according tothe present invention. not only to swing the wiper A downwardly acrossthe mouthpiece by a positive action, but also to return it to itsoriginal position by a positive action. 1

To this end, means, controlled from the main shaft E. are provided forrocking the shaft B positively in opposite. directions. As best shown inFigs. 1, t and 5, a lever B is pivoted to the bearing bracket C and isloosely connected between its ends. as by a pin and slot arrangement B.to a yoke member B secured to the rock shaft B. The lever B extendsbeneath the shaft B and is formed at its free end with a flat portion B,which is so arranged that. when the shaft is turned in aclockwisedirection, it will be rocked upwardly by the yoke B" into the path of aninclined rib f of a cam plate F. This cam plate (Figs. 1, 2 and 4) isfastened to the side of the mold disc rotating gear wheel E rigidlymounted. on the main shaft- E and normally rotated in the directionindicated by the arrows. A collar B loose on the rock shaft B, isprovided on its periphery with an adjustable stud B and on its rear facewith a fixed pin B. the latter projecting into a circumferential recessB formed in a sleeve B keyed to the rock shaft. The recess B is ofsufficient extent to permit a certain amount of relative movementbetween the collar B and shaft Bffor reasons later to appear. The studPf is formed with a rounded anti-friction head B which (as shown inFigs. 1 and 4-) is normally disposed in the path of the rib f of camplate F.

According to the foregoing arrangement, the stud B will be first engagedby the inclined rib f of the cam plate F. as the wheel E is rotated, andthrough the pin B and sleeve B turn the rock shaft B clockwise, thelever B at the same time being swung upwardly through its connectionwith the yoke B into the path of the rib f (see dotted lines. Fig. 4).At this point in the operation, itwill he noted that the rib f is aboutto ride over the stud head B and engage the lever end portion B As therotation of the cam E continues, the lever B will be depressed to itsoriginal full-line position and through the yoke B turn the shaft B inthe opposite or anti-clockwise direct-ion, the rib f clearing theportion B as indicated by the dotted lines at the lower part of Fig. 4.i The rock shaft B is thus operated positively in both directions inimparting the to-and-fro movements to the wiper blade AQthe extent ofmovement of the blade being readily determined by the position of thestud B and lever l'l in relation to the cam plate F.

In order to prevent possible ovcrtl'irow of the rock shaft B when it isturned in one direction by the lever 13. as well as to obviate thesudden contact between the end of said lever and the stud lr" when theshaft completes its stroke in the opposite direction. there is provideda that s iring brake or detent B anchored to the lived bracket U andbearing down upon a second collar 13 secured to the shaft B. This:collar (as clearly indicated in Fig. (i) is formed on its peripheraledge with two ribs or tm'rgucs B adapted to alternately engage aornspondii'ig groove in the under side of the detent I as the shaft isrocl d from one bosition to the other. The detent also serves to holdthe wiper blade yieldingly in its normal raised position as shown inFig. 1.

It may happen that. after the cam plate F has passed the stud b and deressed the lever B, some almormal operation of the machine willnecessitate a backing up or reversal of the main shaft E. In such case.the relative movement of the collar B to the shaft B. as permitted bythe recess B. allows the ram plate F to pass the stud B withoutinterfering therewith.

Since the space a 'ailable between the mold disc G and the potmouthpiece l) is very lin'iited, as may be observed by reference to Fig.7. the wiper blade A is made comparatively thin and hence. withoutfurther support, might be subject to bending or facewise displacementsuch as to impair its parallel relation to the face of the mouthpiece.Means are therefore provided for guiding the wiper in its reciprocalionsto insure the proper frictional engagement of its wiping pad A" with thefront face of the mouthpiece D at all times. Accordinirlv. the wiperblade A is formed near its free end with an upwardly curved guidingpol"- tion A having its inner edge A concentric with the axis of therock shaft; ii. A guiding stud J, projecting rcarvvardly from a fixedpart of the machine to a point flush with the front face of said portioni: also provided and arranged to restrain the blade against facewisedisplacement in a forward direction. The blade is likewis restrainedagainst facewise displacement n a rearward direction by the head of ashouldered screw J threaded into the end of the stud J. In other words.the. relation of the parts such that an annular groove :rl' fordcd tocontain the inner edge A." of the guiding portion A".

Having thus described my invention. its construction and mode ofoperation. what I claim and desire to secure by Letters Pat ent of theUnited States. is as follows:

Inn

lli i 1.111 a slug casting machine, the combienation'ofa meltingpot'having' a mouthpiece, a 'wiper blade arranged to swing back andforth across the face of themouthpiece,

guiding means to support the blade I against lateral displacement duringits movements,

- and Imeans for imparting the to-and-fro movements to the wiper blade.

2. In "a slug casting machine, the combr nation of the main shaft, a camrig1dly connected to said shaft, a-melting pot having a mouthp1ece, awlper blade arranged tomove back and forth across the face ofthemouthpiece, I and means actuated by the rigidly connected cam ofthejmain shaft for moving the blade positively: in both directions.

3.111 a slug-casting machine, the combination of the main shaft,.amelting pot having a mouthpiece,awiper blade arranged to swing back andforth across the face of the mouthpiece, guiding meansto support theblade against lateral displacement during its movements,and meanscontrolled from the mainshaft for swinging the blade to and fro. 'g-

. L'Ina slug casting machine, the combination ofthe main "shaft, a camrigidly connectedto saidshaft, a melting pothavmg a mouthpiece, awiperblade for the mouthpiece,a rock shaftwhereon the blade is fixedlymounted, and means actuated by the rigidly connected cam of the mainshaft for turning the rock shaft positively in bothdirections to swingthe wiper-blade backand forth across the face of the mouthpiece.

5. In a slug casting machine, the combi nation of the'main shaft, a camrigidly con nected to said 'shaftga meltingpot having a mouthpiece, awiper blade for the mouthp1ece,a rock sha-ftwhereon'the blade isjl'ixedly'mounted, and means actuated the rigidly connected cam of the mainshaftfor turning the rock shaft positively in both directions to" swingthe wiper bladeback and forthacross the face of the mouthpiece, saidmeans being arranged to permit the backing up of the main shaft whendesired. e

6. In a slug casting machine, the combi- Ination of] the main'shaft, amelting pot having a mouthpiece, a wiper bladefor the mouthpiece,larockshaft whereon the'blade is fixedly mounted, means controlled fromthe main shaftfor turning, the rock shaft in- 'both directions to movethe wiper blade back and forth across thefaceof the mouthynece,

and yielding means for restraining the blade against overthrow movementand for holding it in inactivepositionp p 7.111 a slug casting machine,the combination of a melting pot having a mouthpiece,,a wiper bladefor.theflmouthpiece, a

rock shaft whereon the bladeis fixedly mounted, a rotaryoperating'member having a cam projection thereon, and means con nectedto the rock shaft and operable-"by scribed.

said projection l to turn the shaft first positively in one directionandthen positively in the other directionto swing the 'bladeback and'forthacross the face of the mouthpiece.

8.-I'n a slug casting machine, the combination of a pot mouthpiece wiperblade, .a rotary operating memberya rock shaft upon .whicl tlie wiperblade is mounted,'a cam PI'OJGCUOII secured to the operating member,

a stud protruding from the shaft and arranged in the path of saidprojection wheremounted on and operatively connected to the rock shaft,a stud protruding from the collar, and a rotary wheel provided with acam projection adapt-edto engage first the stud and then the free end ofthe lever inthe rotation ofthe wheel. I

10. Ina slug casting machine, the combination of the wiper blade A andits operating arm A, the rockshaft B to which the arm A is secured, theyoke B fast to the rock'shaft, the pivoted lever B connected as at B tothe yoke B and provided with the end portion 13*, the collar B loose onthe rock shaft and provided with the radially protruding stud B and thelaterally projecting; pin B the collar B fast to the rock] shaft andformed with the circumferential recess 13 m which the pin B engages, and

the rotary wheel E provided with the cam plate]? with its inclined rib'7, all substantially asshown and described.

11. In a slug casting machine, the combination of the wiper blade A andits operatingarinA, the rock shaft B to which the arm A" is secured,the'yolre B fast to the rock shaft, the pivoted lever B connected as atB to the yoke B and provided with the end portion Bathe collar B looseon the rock shaft and provided with the ral .diallyprotruding stud B andthe laterally projecting pin B, the collarB fast to the rock shaft andformed with the circumferential recess B in which the pin B engages, acollar B also fast to the rock shaft and formed'with the locking ribs B,the spring detent B formed with a notch to engage the ribs B and therotary wheel E' provided withthecam plate F with its inclined.

rib flaa'll substantially as shown and de- '12. In a slugcastingmachine,the combinatlon 0f the vibratory wiper -blade A Cal formed with thecurved guiding portion A, and the grooved collar J with which theguiding portion A is operatively engaged.

13. In a slug casting machine. the combination of a swinging potmouthpiece wiper blade, 21 rock shaft on which the wiper blade ismounted at one end, means for turning the rock shaft in oppositedirections to swing the wiper blade to and fro, and guiding meansengaged with the free end of the wiper blade to support it against,lateral displacement in its swingingmovements.

14. In a slug casting machine, the combination of a melting pot having amouth piece. a wiper blade arranged to move back and forth across theface of the mouthpiece, two sets of devices operatively connected tosaid wiper blade, the devices of one 1; .t being act-uatable to move theblade positively in one direction, and the devices of the other setbeing actuat'able to move the blade positively in the oppositedirection, and positivelv acting means arranged to engage and actuatethe two said sets of devices one after the other in rapid succession inin'iparting the to and fro movement to the wiper blade.

15. In a slugcasting machine, the combination of a melting pot having amouthpiece. a wiper blade for the ll'lOtltlll'JlGCQ. a rock shaftwheicon the blade is fixedly mounted, two sets of devices operativelyconnected to said rock shaft. the devices of one set being; actuatableto turn the shaftpositivclv in one direction and the devices of theother set being actuatahle to turn the shaft positively in the oppositedirection, and positively acting means arranged to engl ae'e and actuatethe two Said sets oi. devices one after the other in rapid succession incausing the wiper blade to swing back and forth across the face of themouthpiece. in testimony whereof, l. have aflixed my signature hereto.

ISIDORE T. HEMAS.

